History/Background:
- Mathematics education in East Asia from antiquity to modern times
- Asian contributions to Math
- On East Asia Mathematics – Rhea
- Mathematics of Takebe Katahiro and History of Mathematics in East Asia | Advanced Studies in Pure Mathematics
- Sacred Mathematics: Japanese Temple Geometry by Fukagawa and Rothman
- Japanese temple geometry (sangaku)
- Epic Circles (youtube)
Theorems/Proofs:
- 60 New Sangaku Problems | J. Marshall Unger
- A Collection of 30 Sangaku Problems | J. Marshall Unger
- Number Theory – The Chinese Remainder Theorem
- https://brilliant.org/wiki/chinese-remainder-theorem/
- https://www.cut-the-knot.org/blue/chinese.shtml
- The Chinese Remainder Theorem
Origami/Tangram:
- Origami Resources (link)
- Origami & Math
- Origami crane instructions
- Paper Crane instructions (pdf):
- Sadako’s story
- 1000 Crane Club
- Instructions for Stringing Paper Cranes
- Ohio Paperfolders of Origami Artists
Tangrams
- Making Tangram Pieces by Folding Paper
- Mathagon Tangram Builder Website
- Puzzle Museum – digital collection of historical tangram sets and other puzzles
- The Sages Journey (youtube)
- Tangrams: Be Yourself – YouTube Children’s Stories
- Stop Motion Tangrams Set to Music (youtube)
- Tangrams as Performative Art
- Virtual Go Game
- Pythagorean Theorom Proof by Lui Hui
- OSMO: Tangram app for iPad and Tablet Computers
- Convex Tangrams (Austrailian Mathematics Teacher)
- Loyd, Sam. The Book of Tangrams (Dover, 2019)
- Slocum, Jerry. The Tangram Book: The Story of the Chinese Puzzle. (Sterling, 2005)
- Happy As A Gram, From Lauren Ko’s “Pieometry”. CBS News. – Tangrams Pie Recipe
- “Five Compelling Reasons to Teach Spatial Reasoning to Young Children.”KQED. MindShift:
- “Spatial Skills Archive” KQED. MindShift
Abacus/Soroban/suanpan:
- The History of the Abacus
- Soroban (Abacus in Japan) and Suanpan (Abacus in China)
- An Introduction to the Traditional Abacus of China and Japan
- An online version of sorobans and suanpans
- Addition on abacus
- Multiplication on abacus
- Division on abucus
- No Abacus Handy? Use your hands.
- Memory Work is Not Mathematics
Link to Games Resource page, includes Tangrams, Karuta, Sugoroku, Pokemon Bingo)